Plimmon it



(No Modeln) P. H. DUDLEY.

RAIL SECTION.

No. 442,3663. Patented Deo. 9, 1890.

Jfgj.

UNITED STATES PATENT OFFICE.

PLIMMON ll. DDLEY, OF NET YORK, N. Y.

RAIL-SECTION.

SPECIFICATION forming part of Letters Patent No.

442,366, dated December 9, 1890.

Application filed August 8, 1890. Serial No. 361,412. (No model.)

Be it known that I, PLTMMON H. DUDLEY, of New York, in the county and State of New York, have invented a certain new and useful Improvement in RaileSectionsot which the following is a specication.

My invention relates to au improvement in rail-sections, and more particiiilarly to sec tions which are intended to be laid along the curved portions ot a track. In my pending applicationerial No. 343,483, filed March ll, 1890, and allowed .Tune ll,.l890,lset forth at some length the causes t'or the more rapid wear of the rails at the curved portions of the track and showed, described, and claimed certain rail structures intended to render the lives of rails uniform throughout the level tangent, the gradient tangent', and the curved portions ot the track.

The object ot my present invention is to provide a form of rail-section which may be practically employed to Overcome in a considerable degree thecuttingof the inner edge of the outer rail, due to the forward thrust of the inner end of the axial line of the truck in front ot the center ot the arc of the curve and the consequent th rust ot the forward portion of the anges ot' the outer wheels ot the track toward the inner edge of the outer rail, and at the same time preserve the bearingsurfaoe of the rail of substantially the same width upon the curve as upon the other tracksections.

A practical embodiment of my invention is represented in the accompanying drawings7 in which- Figure l is a vertical transverse section through the rail-section, showing the position ot the tread of a wheel thereon as passing around a curve section of track; and Fig. 2 represents a plan view of a curve section of track, the rail-section forming the subject of my present invention being represented as the inner rail, and a rail-section having a bearing-surface of increased width being represented as the outer rail.

A represents the head of the inner rail of the curve, B its web, and C its base. The bearing-face a of the said rail is of substantially the same width as the bearing'faces of the rails D, which torni the tangent sections of thetraek. The width of the bearing-face d is not, however, necessarily restricted to the eX- act width ot the bearing-faces ot the rails ou the tangent sections, but is preferably about the same width.

The corner d of the head A--viz., the corner toward the center of the are of the curve--is intended to occupy a position along the line which the incline e nearest the outer side of the wheel E would occupy in traveling around the curve, with the flange of the wheel in proximity to the oppositeedge of the head A. To preserve the uniform distance between the rails of the curved track-section, the edge of the head A farthest from the conter of the are of the curve is provided with a laterally projecting rib ai, located below the bearingsurface ot the rail. its edge forming a continuation of the edge of the head adjacent thereto. The outer ledge oi' the hollow' in the treads of ear-wheels is thus utilized by causing it to contact with the corner ot the railto hold the ange of the outer wheel of the truck away from the edge ot' the rail, and the cntting is thereby materially decreased.

W hat I claim as my invention isl. A railway-rail the head of which has a substantially fiat bearing-surface, and is provided with a rib projecting laterally from the head below the bearing-surface and in position to engage at its edge the side of the depending ange ot a ear-wheel, substantially as set forth.

2. In combination with a tangent section of track, a curved section of track, theI rail-section on the curve having a bearing-surface corresponding to the bearing-surfaces of the rail-sections on the tangent and having its outer edge set outof the line ofthe outer edge of the adjacent rail-section and provided. with a laterally-extending rib ou the inner edge of its head below the bearing-surface of the rail, substantially as set forth.

PLIMMON Il. DUDLEY.

Witnesses:

FREDK. HAYNEs,

GEORGE BARRY. 

